1) Steel Fury which was made in 2007and has been greatly modded and expanded, Panzer Elite which goes back to 1999 but has been heavily modded and updated and is still played and T34 versus Tiger from 2007 which was almost sent to an early grave because it was buggy , unfinished and the developers dropping it like a hot potato. Currently only Zeewolf mods it but his mods are not free.

World of Tanks and World of Warplanes are made by Wargaming.net. War Thunder is made by Gaijin. Same basic theory, but Wargaming.net's games aren't as realistic as War Thunder.

War Thunder has mixed arm battles (tanks and planes), and is much cheaper. With tanks now out, I can say as part of the CBT, they were very fun to ride in, with the added bonus of, if you are destroyed by a tank, you can hop into an IL-10 to pay him back in kind. World Of Tanks does not do this.

If you're looking for an MMO WW2 tank experience with Western Front equipment, you may wish to check out (if you've not already) ww2 Online. Its been around since June 2002 (and the graphics show it, but that its still around and people pay to play is testament of its value).